BY HAYLEY MINN ON SEPTEMBER 13, 2013
Talking to Radio Times, the actor, who plays Thomas Barrow, described Siobhan, who played Thomas' partner-in-crime O'Brien, as “the best actor” he's ever worked with. He said: "I was devastated. She’s the best actor I’ve ever worked with.
I’ve not worked with many so it’s not much of a badge of honor! But she was brilliant. "She was also really funny and we were really good friends. Really strong character, a very funny woman, brilliant actor." Rob also confessed that he will miss having Siobhan on set, due to the fact that he would copy acting techniques off of her: "I copied everything off her - the stillness, the economy of movement, throwing everything away because it makes you more sinister. I was going to go over the top and try and be Marlon Brando.
"I think she left behind a superb character. I think she was a lot of people’s favourite and quite rightly because she was just so enigmatic and dark... I love her and I want her to come back!"
Read more at http://www.entertainmentwise.com/news/126398/Rob-James-Collier-Devastated-At-Siobhan-Finnerans-Departure-From-Downton-Abbey#0Q2B7P4rP91TwZkO.99